18419779

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:570

約数の個数: 16

約数和(自身を含む): 21669120

約数和(自身を除く): 3249341

約数列:

[1, 7, 53, 131, 371, 379, 917, 2653, 6943, 20087, 48601, 49649, 140609, 347543, 2631397, 18419779]

約数ペア:

[(1, 18419779), (7, 2631397), (53, 347543), (131, 140609), (371, 49649), (379, 48601), (917, 20087), (2653, 6943)]